They had a share consolidation....if you had 7000 you might only have a much smaller number now..they would have reduced your shareholding put increased the share price....you can find further details at the link below..
Got my new cert today. I now have 20 of the new shares. I will put them alongside my Waterford Wedgewood, my Bradford and Bingley, my Cattles and my Woolworths.....seriously!